Wyniki wyszukiwania - Biblioteka Nauki

1

Dotychczasowe prace nad możliwością wykorzystania owadów pożytecznych w sadach w Polsce na tle badań prowadzonych w innych krajach

100%

Niemczyk E.

|

tom 144

2

Konferencja Integrowanej Produkcji Owocow w Lleidzie

100%

Niemczyk E.

Owoce, Warzywa, Kwiaty

|

2001

|

nr 05

36-37

3

Dobroczynka jabloniowa - drapiezca przedziorkow i szpecieli

100%

Niemczyk E.

|

nr 21

33-34

4

Dobroczynek gruszowiec zamiast preparatow chemicznych

100%

Niemczyk E.

|

nr 03

16-17

5

Integrowana produkcja owocow a Unia Europejska

100%

Niemczyk E.

|

nr 13

19

6

Pszczoly zamiast opryskiwacza?

100%

Niemczyk E.

|

nr 09

14

7

Odnajdywanie przędziorków przez larwy dziubałka gajowego (Anthocoris nemorum L.)

100%

Niemczyk E.

|

tom 251

8

Integrowana produkcja truskawek w USA

88%

Niemczyk E.

Sad Nowoczesny

|

1998

|

tom 26

|

nr 10

11-12

9

Miedzynarodowa Konferencja IPO w Leuven w Belgii

88%

Niemczyk E.

|

nr 11

20-21

10

Skorki - wrogowie czy przyjaciele?

75%

Niemczyk E.

|

nr 09

56-57

11

Organizacja oraz wstepne wyniki i wnioski dotyczace integrowanej produkcji jablek w Polsce

63%

Niemczyk E. , Olszak R.

|

1992

|

nr 1-2

4-10

12

IPO coraz bardziej konieczna

63%

Niemczyk E.

|

nr 01

12

13

Nowosci z Leuven

63%

Niemczyk E.

|

nr 01

4-5

14

Differences in the lipids composition of plasma membrane in two near-isogenic lines of wheat (SrHopeRa and SrHopeSa) differenig in their resistance to stem rust

51%

Skoczowski A. , Barna B. , Dubert F. , Niemczyk E.

|

nr 1 suppl.

15

Efektywnosc dwoch metod introdukcji drapieznego roztocza dobroczynka gruszowca [Typhlodromus pyri Scheut.] [Phytoseiidae] w sadach jabloniowych

51%

Niemczyk E. , Kumor I. , Skorupinski G.

|

2000

|

tom 08

287-299

16

The spider community associated with apple trees under different pressure of pesticides

51%

Olszak R. W. , Luczak J. , Niemczyk E. , Zajac R. Z.

Ekologia Polska

|

1992

|

tom 40

|

nr 2

265-286

17

Aktualnosci w integrowanej produkcji owocow za granica

51%

Niemczyk E.

|

nr 01

25-28

18

Integrowana produkcja owocow w Polsce

44%

Niemczyk E.

|

nr 09

10-13

19

Temperature-dependent impact of 24-epibrassinolide on the fatty acid composition and sugar content in winter oilseed rape callus

38%

Janeczko A. , Hura K. , Skoczowski A. , Idzik I. , Biesaga-Koscielniak J. , Niemczyk E.

|

tom 31

|

nr 1

EN

The aim of this experiment was to study the effect of 24-epibrassinolide (BR₂₇) on fatty acids composition and sugar content in winter oilseed rape callus cultured at 20 and 5°C. Studies have showed that BR₂₇ action is highly temperature-dependent. The increase in sugar content (sucrose, glucose and fructose) by BR₂₇ in concentration 100 nM was observed only in calli cultured at 20°C. At 5°C, quite the opposite effect of BR₂₇ action was observed; where cold increased the sugar content, BR₂₇ decreased it. BR₂₇ at 20°C had a similar effect on the fatty acid composition of phospholipids (PL) as the cold in the process of frost hardening of oilseed rape calli. BR₂₇ decreased the 16:0, 18:1 and 18:2 and increased the 18:3 fatty acid content. At 5°C, BR₂₇ (100 nM) generally did not influence the fatty acid composition of PL. In case of digalactosyl diacylglycerols and monogalactosyl diacylglycerols, the influence of BR₂₇ on the fatty acid composition is ambiguous but still depends on temperature.

20

Partial characterization of human choriocarcinoma cell line JAR cells in regard to oxidative stress

32%

Hallmann A. , Klimek J. , Masaoka M. , Kaminski M. , Kedzior J. , Majczak A. , Niemczyk E. , Wozniak M. , Trzonkowski P. , Wakabayashi T.

|

nr 4

EN

Characterization of free radical-induced cell injury processes of placenta cells is of vital importance for clinical medicine for the maintenance of intrauterine fetal life. The present study has analyzed cell injury processes in cells of the choriocarcinoma cell line JAR treated with menadione, an anticancer drug, and H2O2 in comparison to osteosarcoma 143B cells using electron microscopic and flow cytometric techniques. Flow cytometry on JAR cells exposed to 100 ^M menadione and double-stained with Annexin V and propidium iodide (PI) detected apoptotic cells reaching the maximum after 4 h of incubation with a rapid decrease thereafter. Viable cells became decreased to 46% of the control after 2 h of incubation, reaching 5% after 4 h. Cells stainable with both Annexin V and PI began to increase distinctly after 2 h of incubation, reaching 55% after 4 h. Electron microscopy showed that cells stainable with both dyes specified above had condensed nuclei and swollen cytoplasm, suggesting that they were undergoing a switch of the cell death mode from apoptosis to necrosis. On the other hand, 90% of 143B cells remained intact after 4 h of menadione treatment although the intracellular levels of superoxide were always higher than those of JAR cells treated with the drug. In contrast, JAR cells were more resistant than 143B cells to H2O2-induced cytotoxicity. These results may suggest that cytotoxicity of menadione cannot be explained simply by oxygen free radicals generated from the drug. The resistance of JAR cells to oxygen free radical-induced cytotoxicity may be advantageous for intrauterine fetal life.